Road works signs

One lane crossover at contraflow road works

What does this sign mean?

This sign shows traffic being routed across the central reservation into a contraflow, where one carriageway carries traffic in both directions during major works. Contraflows have narrow lanes, temporary markings and, often, a lower speed limit, with oncoming traffic separated only by a barrier or cones. Keep well within your lane, hold a safe distance and resist changing lanes unless the signs direct you to. Contraflow procedure, including keeping to the lane you are directed into, is a set-piece theory test topic.

Highway Code references

• Rule 143 from General rules, techniques and advice for all drivers and riders (103 to 158)
• Rule 290 from Road works, level crossings and tramways (288 to 307)

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